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I have a strange issue and not sure what the problem is.

I have a 720p TV hooked up to a NVidia 7300. Everything is fine. But when I put in a 9500 or a GT220 the resolution is detected at 720p, but the display is slightly larger than the screen... the edges are offscreen.

This is the case in windows and in ubuntu. The nvidia windows driver let me resize the screen, but that actualy lowers the resolution, which I dont want to do. Plus, the 7300 worked fine. The problem persists if I use HDMI (if the card supports it) or a DVI to HDMI adapter.

Any thoughts?

Hennes
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Keltari
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5 Answers5

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Did you have the HDMI plugged into the same port on the TV? Some TVs have one HDMI port set to "PC Mode" which has no overscan. Your manual should tell you which.

I had this problem with my WXGA capable 32" Philips TV. Any HDMI port other than HDMI1 and it would overscan like that.

Rhys Gibson
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Mark Ammons
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This sounds like an overscan issue I experienced with my Toshiba lcd tv. My TV has an overscan setting that sometimes likes to reset itself back to 5% overscan.. Check if your TV has something like this.

Community
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Mxx
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I had the same issue (started with updating to win10) on my laptop with TV, I simply plugged in the HDMI to HDMI2 (instead of 1) and it fixed the problem. Both of them are set to PC mode.

Graphic card: NVIDIA® GeForce® GT 630M

TV: Samsung LE26A330J1

AgiZ
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I had a similar problem recently - different card, 1080p tv. For me, changing the refresh rate of my monitor from 60Hz to 59Hz fixed the problem. I don't know why (if anyone has a guess, please leave a comment), but at 59Hz the screen fit the TV and at 60Hz it was a bit too big and part of the picture was cut off.

So, try changing the refresh rate. In Win 7 it's Control Panel\All Control Panel Items\Display\Screen Resolution, click Advanced Settings and choose the Monitor tab. I don't know the procedure for Ubuntu, but it should be in the official docs.

ChimneyImp
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This happened to me with a Samsung SyncMaster 2333HD monitor connected via HDMI. I solved the problem using this video.

Basically, you need to open the monitor menu (the hardware menu), select Input -> Edit Name and select PC for the HDMI input name. This tells the monitor that it's connected to a VGA output.

It's really counter-intuitive that the setting name is "Edit name" instead of "Connected to", or similar, but that's just how it is.

Zoltán
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